From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Sun, 17 Dec 2017 22:46:18 +0000 (-0700)
Subject: Add a comment and PETSc KSP and PC objects.
X-Git-Tag: v9.0.0-rc1~651^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F5639%2Fhead;p=dealii.git

Add a comment and PETSc KSP and PC objects.
---

diff --git a/source/lac/petsc_solver.cc b/source/lac/petsc_solver.cc
index 080ce2aba7..8ec19b7957 100644
--- a/source/lac/petsc_solver.cc
+++ b/source/lac/petsc_solver.cc
@@ -625,6 +625,8 @@ namespace PETScWrappers
   SparseDirectMUMPS::SolverDataMUMPS::~SolverDataMUMPS ()
   {
     destroy_krylov_solver (ksp);
+    // the 'pc' object is owned by the 'ksp' object, and consequently
+    // does not have to be destroyed explicitly here
   }